20036968

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:266

約数の個数: 64

約数和(自身を含む): 45048960

約数和(自身を除く): 25011992

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 53, 56, 86, 106, 157, 172, 212, 301, 314, 344, 371, 424, 602, 628, 742, 1099, 1204, 1256, 1484, 2198, 2279, 2408, 2968, 4396, 4558, 6751, 8321, 8792, 9116, 13502, 15953, 16642, 18232, 27004, 31906, 33284, 47257, 54008, 58247, 63812, 66568, 94514, 116494, 127624, 189028, 232988, 357803, 378056, 465976, 715606, 1431212, 2504621, 2862424, 5009242, 10018484, 20036968]

約数ペア:

[(1, 20036968), (2, 10018484), (4, 5009242), (7, 2862424), (8, 2504621), (14, 1431212), (28, 715606), (43, 465976), (53, 378056), (56, 357803), (86, 232988), (106, 189028), (157, 127624), (172, 116494), (212, 94514), (301, 66568), (314, 63812), (344, 58247), (371, 54008), (424, 47257), (602, 33284), (628, 31906), (742, 27004), (1099, 18232), (1204, 16642), (1256, 15953), (1484, 13502), (2198, 9116), (2279, 8792), (2408, 8321), (2968, 6751), (4396, 4558)]